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NFC: Make a few asserts in GVNHoist do the same thing, but cheaper. 

llvm-svn: 276662
This commit is contained in:
Daniel Berlin 2016-07-25 17:36:14 +00:00
parent 9978dec4c2
commit 14c000936e
1 changed files with 8 additions and 4 deletions
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12
llvm/lib/Transforms/Scalar/GVNHoist.cpp
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@ -74,8 +74,10 @@ public:
if (NA < NB)
return true;
if (NA == NB) {
assert (DFSNumber.count(A) && DFSNumber.count(B));
return DFSNumber[A] < DFSNumber[B];
unsigned ADFS = DFSNumber.lookup(A);
unsigned BDFS = DFSNumber.lookup(B);
assert (ADFS && ADFS);
return ADFS < BDFS;
}
return false;
}
@ -295,8 +297,10 @@ private:
/* Return true when I1 appears before I2 in the instructions of BB. */
bool firstInBB(const Instruction *I1, const Instruction *I2) {
assert (I1->getParent() == I2->getParent());
assert (DFSNumber.count(I1) && DFSNumber.count(I2));
return DFSNumber[I1] < DFSNumber[I2];
unsigned I1DFS = DFSNumber.lookup(I1);
unsigned I2DFS = DFSNumber.lookup(I2);
assert (I1DFS && I2DFS);
return I1DFS < I2DFS;
}
// Return true when there are users of Def in BB.